3 years ago

Make r the subject of the formula t = r/r-3

Mathematics

1 answer:

NISA [10]3 years ago

4 0

Answer:

Infinite/(-∞, ∞)

Step-by-step explanation:

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Evaluate if x =3 and y = -2<br><br> x2+2xy−4y

Marysya12 [62]

Answer:

Step-by-step explanation:

With the equation $x^2 + 2xy - 4y$ , we can substitute the values of x = 3 and y = -2 into the equation to find its result.

$(3^2) + (2\cdot3\cdot-2) - (4\cdot-2)\\\\9 + (6\cdot-2) - (-8)\\9 - 12 + 8\\5$

Hope this helped!

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3 years ago

From a balloon 760 feet high, the angle of depression to the ranger headquarters is 89°18'. How far is the headquarters from a p

Gnom [1K]

Answer:

9 ft

Step-by-step explanation:

let x be the required distance.

$\frac{760}{x} =tan~ 89^\circ18 '\\x=\frac{760}{tan~89^\circ 18' } =\frac{760}{tan~89 \frac{18}{60}} =\frac{760}{tan~89.3^\circ} \\or~x \approx 9~ft$

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3 years ago

Hello' if you can please show the steps too that would be much appreciated!

DochEvi [55]

Step-by-step explanation:

Hi! I hope this helps and have a great day.

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3 years ago

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Linear relations I need help on these two

melomori [17]

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4 years ago

K/2 - 1 = 1 solve for k

Nana76 [90]

K=4 would be the answer you’re looking for

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3 years ago